JP2009048726A - Reproduction composite machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reproduction composite machine in which the information of a loaded optical disk can be confirmed quickly even during a start and stop of the optical disk. <P>SOLUTION: An optical disk reproducing device constituting the reproduction composite machine is provided with an optical disk detecting part detecting the loading and unloading of the optical disk. Also, the device is provided with a discriminated information obtaining part obtaining discriminated information for specifying the optical disk uniquely. When the loading of the optical disk is detected by an optical disk detecting part, the discrimination information obtaining part reads discrimination information and transmits it to a display device. When the discrimination information is given by the optical disk reproducing device, a discrimination information recording part provided at the display device records the discrimination information in the recording part. The discrimination information display part receives a display instruction of the discrimination information, thereby the discrimination information is read out and displayed on the display part. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a playback multi-function peripheral comprising an optical disk playback device and a display device for playing back video recorded on an optical disk, and in particular, displays information about an optical disk on a display device even when the optical disk playback device is stopped. The present invention relates to a reproduction multifunction peripheral that is possible.

  2. Description of the Related Art In recent years, digital playback devices such as a DVD (Digital Versatile Disk) player or a BD (Blu-ray Disc) player have become widespread as devices for playing back video and audio processed in video devices such as televisions. ing. Also, a reproduction multifunction peripheral in which the reproduction apparatus and a display device such as a television apparatus are integrated is widely used.

  As typical playback multifunction devices, for example, there are a TV with a built-in HDD recorder, a television with a built-in DVD player, and the like. These multifunction peripherals are usually provided with a common power source for supplying power to each device included in the multifunction peripheral, but the operation control can be performed individually for each device. For example, in the case of a television with a built-in DVD player, the DVD player device unit and the television device unit can operate independently of each other. Therefore, for example, a plurality of power buttons are provided individually. As a result, when only some of the device units are used, the operation of the other device units can be stopped to reduce power consumption.

  In relation to the above, in Patent Document 1, the optical disk set state is displayed by an OSD (On Screen Display) of the television receiver in a state where the optical disk is set in the optical disk device, and the set state is viewed from the user. An optical disc system is disclosed which can be understood. This disk system detects whether an optical disk is set in the apparatus main body. Then, a DiskIn display signal is generated as a signal indicating the set state of the optical disc, and the DiskIn display signal is transmitted to the television receiver. When the television receiver receives the DiskIn display signal, the television receiver displays the DiskIn video on the OSD as a video representing the set state of the optical disc.

In relation to the above, Patent Document 2 discloses a playback apparatus that can easily grasp on which recording medium desired music is recorded. In this playback apparatus, when music guidance information of desired music is input, a medium in which a music data file that matches the input music guidance information is recorded in a recording medium that has been loaded in the apparatus once in the past. Determine if there is any. If there is a corresponding medium, the user is notified of the recording medium identification information of the recording medium.
JP 2006-268990 A JP 2005-346893 A

  However, in Patent Document 1 and Patent Document 2, in order to read and display information on a disc, both the disc playback device and the television device need to be in an activated state. In a playback multi-function peripheral, the disc playback device is usually stopped when the disc playback device is not used, such as when viewing a television broadcast. Therefore, in such a state, when the user wants to confirm the information of the optical disk set in the disk playback device, the user starts the power source of the optical disk playback device and completes the spin-up process until the disk can be read. There was a problem of having to wait.

  The present invention has been made in view of the above problems, and in a playback decoder including an optical disk playback apparatus, even when the optical disk is stopped, information about the set optical disk is quickly notified. An object of the present invention is to provide a reproduction multifunction peripheral capable of performing the above.

  In order to achieve the above object, a reproduction multifunction peripheral of the present invention includes a recording unit, a display unit, a display device including a video signal superimposing unit that superimposes a video signal, and an optical disk reproducing device including an optical disk drive. An optical disc detector that detects whether an optical disc is attached to or detached from the optical disc drive, and an optical disc detector that is capable of individually controlling activation / non-activation of the display device and the optical disc device. Identification information acquisition means for acquiring identification information for identifying the optical disk from the management information recording area of the optical disk and giving it to the display device when the optical disk is detected by the display device, and the display device, An identification information recording means for recording the identification information given by the identification information acquisition means in a recording section; An identification information display means for reading the identification information from the recording unit by receiving a report display instruction and superimposing the video signal including the identification information on the display unit by the video signal superimposing unit. It is characterized by that.

  According to this, the reproduction multifunction peripheral of the present invention is a multifunction peripheral including a display device such as a television device and an optical disk reproduction device such as a DVD player. The display device includes at least a recording unit such as a memory, a display unit such as a monitor, and an OSD processing unit (= video signal superimposing unit) that generates and superimposes a video signal for performing OSD display on the display unit. Further, the optical disc playback apparatus includes at least an optical disc drive. Note that the display device and the optical disk playback device have separate control units, and thus each device can operate independently.

  Further, the optical disk reproducing apparatus includes an optical disk detection unit (= optical disk detection means) that detects attachment / detachment of the optical disk. Further, an identification information acquisition unit (= identification information acquisition means) is provided for acquiring identification information for uniquely identifying the optical disk from a management information recording area in which a file system of the optical disk is recorded. The identification information acquisition unit reads the identification information and transmits it to the display device when the optical disk detection unit detects the mounting of the optical disk.

  The display device further includes an identification information recording unit (= identification information recording unit) and an identification information display unit (= identification information display unit). The identification information recording unit records the identification information in a recording unit such as a memory when the identification information is given from the optical disc reproducing apparatus. The identification information display unit reads the identification information from the recording unit by receiving an instruction to display the identification information. Then, a video signal for displaying the read identification information is superimposed by the OSD processing unit and displayed on the display unit.

  As described above, in the present invention, the identification information acquisition process is not performed after receiving the identification information display instruction of the optical disc, but the identification information is acquired and recorded in advance, thereby shortening the processing time of the display process. Can do. Further, even when the optical disk device is stopped from starting, identification information can be displayed without starting the optical disk device.

  Further, in order to achieve the above object, the reproduction multifunction machine according to the present invention erases the identification information recorded in the recording unit when the display device detects that the optical disk is detected. It is characterized by comprising identification information erasing means.

  According to this, in the reproduction multifunction peripheral of the present invention, the display device includes an identification information erasing unit (= identification information erasing means). The identification information erasure unit waits for a desorption detection notification issued when the optical disk detection unit detects the desorption of the optical disk. When the desorption detection notification is received, the identification information recorded in the recording unit is erased. For this reason, it is possible to prevent erroneous identification information from being displayed when no optical disk is loaded.

  In order to achieve the above object, the reproduction multifunction apparatus of the present invention is characterized in that a volume label recorded in a management information recording area of an optical disc is used as the identification information.

  According to this, the identification information acquisition unit uses the volume label included in the file system of the optical disc as identification information. Since the volume label stores a unique value for each optical disc, the optical disc can be uniquely identified. Further, since the volume label can be obtained without reproducing the video data contained in the optical disc, the acquisition can be completed in a short processing time.

  In order to achieve the above object, the reproduction multifunction peripheral of the present invention includes an operation unit, and a video signal superimposed by the video signal superimposing unit when the identification information display button included in the operation unit is pressed. When an operation for displaying the identification information is performed on the operation screen displayed by the above, an instruction to display the identification information is issued.

  According to this, the reproduction multifunction peripheral of the present invention displays the identification information in response to the user operating the identification information display button included in the operation device (= operation unit) such as a remote controller. Also, identification information is displayed in response to the user selecting an identification information display icon or the like on a menu screen or the like displayed on the OSD.

  According to the present invention, since the identification information is acquired and recorded in advance, the processing time of the identification information display process can be shortened. For this reason, a user's waiting time can be reduced and the convenience improves. In addition, according to the present invention, even if the optical disk device is activated and stopped, the user can confirm the identification information as long as the display device is activated. For this reason, it is possible to save the trouble of activating the optical disk device only for confirming the contents of the optical disk and confirming the title of the optical disk by detaching or reproducing the optical disk.

  According to the invention, when the optical disc is taken out from the optical disc drive, the identification information recorded in the recording unit is erased so that it cannot be displayed. For this reason, since the identification information is displayed even when the optical disk is not loaded, it is possible to prevent a problem that the user erroneously recognizes the title of the optical disk.

  Further, according to the present invention, a volume label unique to each optical disc is used as identification information. For this reason, the user can easily identify the title of the optical disc without attaching or detaching the optical disc. In addition, since the volume label can be acquired in a shorter processing time than the video reproduction process, the waiting time of the user can be shortened.

  Further, according to the present invention, an instruction to display identification information is given using an operating device such as a remote controller or a menu screen displayed by OSD. Therefore, the user can easily and intuitively perform the identification information display operation.

  An embodiment of the present invention will be described below with reference to the drawings. In addition, embodiment shown here is an example and this invention is not limited to embodiment shown here.

<1. Internal configuration>
FIG. 2 is a block diagram showing a DVD player built-in television 100 (= reproduction multifunction device) according to an embodiment of the present invention. The DVD player built-in television 100 includes a television device unit 1 and an optical disk device unit 3. The television apparatus 1 (= display apparatus) and the optical disk apparatus section 3 (= optical disk playback apparatus) operate by receiving a voltage supplied from a common power source (not shown), but the operation control is performed by each control section (= TV control section). 11 and the control unit 31). Therefore, for example, even when the optical disk device unit 3 is stopped, the television device unit 1 can view a television broadcast.

  The television apparatus unit 1 includes at least a control unit 11, a memory 12 (= recording unit), a broadcast receiving unit 13, a data input unit 14, a video signal processing unit 15, an OSD processing unit 16 (= video signal superimposing unit), and a video signal output. Unit 17, monitor 18 (= display unit), audio signal processing unit 19, audio signal output unit 20, speaker 21, and operation unit 22. The optical disc apparatus unit 3 includes at least a control unit 31, an optical disc drive 32, a pickup control unit 33, and a signal processing unit 34.

  The control unit 11 controls the driving of each member of the television device unit 1 to control the reception of the television broadcast, the display processing of the received television broadcast, and the like. For example, the control unit 11 includes a plurality of microprocessors. The control unit 11 is a central part that controls each device, calculates data, processes, and the like. Details of each functional unit (identification information recording unit 11a to identification information erasing unit 11c in FIG. 1) provided in the control unit 11 will be described later.

  The memory 12 is a medium for temporarily recording various data held by the television apparatus unit 1 and is configured by, for example, a writable RAM (Random Access Memory). The memory 12 has a role as a buffer memory for temporarily recording, for example, processing data when a reproduction process is performed by the control unit 11 and an instruction command received from a user.

  The broadcast receiving unit 13 is connected to an external antenna (not shown) and performs digital broadcast or analog broadcast tuning, reception, frequency conversion, amplification, demodulation, and the like. Thereby, a video signal, an audio signal or the like is obtained from the received broadcast signal. The broadcast receiver 13 is configured to include an analog tuner, a video intermediate frequency amplifier circuit, a demodulator circuit, an amplifier circuit, and the like in the case of an analog system. In the case of a digital system, a digital tuner, an error correction unit, a demultiplexing unit, and the like are included.

  The data input unit 14 is an input interface for inputting a video signal and an audio signal from an external device. It also has a role of inputting digital information obtained by compressing video signals and audio signals by a specific compression method. The data input unit 14 is configured to include an external connection terminal such as an RCA terminal, an S terminal, or an HDMI terminal, for example.

  The video signal processing unit 15 generates digital information by compressing the video signal by a moving image compression method such as MPEG2. As a signal to be compressed, for example, a video signal input from the data input unit 14 is a compression target. Conversely, it also has a function of decoding digital broadcast data given from the broadcast receiver 13 into a video signal.

  The OSD processing unit 16 generates a video signal for displaying a still image such as a character image or an icon. Specifically, for example, a recording reservation screen for a user to make a recording reservation or a video signal for displaying a thumbnail image extracted from moving image data is generated. The video signal generated by the OSD processing unit 16 is superimposed on the video signal supplied from the video signal processing unit 15 and supplied to the video signal output unit 17.

  The video signal output unit 17 converts the video signal supplied from the OSD processing unit 16 into a primary color signal. Then, the video is displayed on the monitor 18 using the primary color signal. The video signal output unit 17 is realized by an integrated circuit such as an LSI chip, for example.

  The monitor 18 is a display unit configured by an LCD (Liquid Crystal Display) module including, for example, a backlight, a liquid crystal panel, and a driver. The backlight is a light emitting device arranged on the back side of the liquid crystal panel. As the backlight, for example, an edge light system using a cold cathode tube as a light source or a direct type system in which fluorescent lamps are arranged on the back surface of a liquid crystal panel is used. The amount of light emitted from the light source of the backlight is adjusted by a backlight adjuster or an inverter circuit.

  The audio signal processing unit 19 converts the digital signal including the audio demodulated by the broadcast receiving unit 13 and the audio input from the data input unit 14 into an analog signal by D / A conversion, and gives the audio signal to the audio signal output unit 20. . The audio signal output unit 20 converts the audio signal into audio using the speaker 21 and outputs the audio. At this time, the audio signal output unit 20 sets the output volume and sound quality based on the instruction received from the control unit 11.

  The operation unit 22 is for the user to give various instructions to the TV 100 with a built-in DVD player for viewing and the like of the program. The instruction output from the operation unit 13 is received by the control unit 11. The operation unit 22 is configured to include an identification information display button (not shown) for issuing an optical disc identification information display instruction to the control unit 11.

  The control unit 31 controls the driving of each member of the optical disc apparatus unit 3 so as to control the reproduction processing of the optical disc and the like. For example, the control unit 31 includes a plurality of microprocessors. The control unit 31 is a central part that controls each device, calculates data, processes, and the like. The details of the function units (the identification information acquisition unit 31a and the optical disc detection unit 31b in FIG. 1) included in the control unit 31 will be described later.

  The optical disk drive 32 is an optical device for optically reading various data from an optical disk such as a CD medium or a DVD medium 91. Since there are a plurality of standards for optical disks, various processes (reproduction processes, etc.) cannot be performed unless an optical disk conforming to the standards supported by the optical disk drive 32 is used.

  The pickup control unit 33 controls an optical pickup (not shown) included in the DVD drive 32. The optical pickup irradiates the DVD medium 91 with a light beam and reads various information such as audio information and video information recorded on the DVD medium 91. At this time, the pickup control unit 33 performs various controls such as drive control, focus control, and tilt control of the optical pickup.

  The signal processing unit 34 demodulates data read from the DVD medium 91 by the optical disk drive 32, for example, streaming data of the MPEG2 system, and acquires a video signal, an audio signal, or management information. The acquired signal or various management information is given to the control unit 31, and a part thereof is sent to the television apparatus unit 1.

<2. About the configuration of the function section>
Here, the relationship among the functional units for performing the disc information display process in the DVD player built-in television 100 according to an embodiment of the present invention will be described with reference to the functional block diagram of FIG.

  As shown in FIG. 1, the disc information display process of the present invention includes at least the identification information recording unit 11a (= identification information recording unit), the identification information display unit 11b (= identification information display unit), and the identification information included in the control unit 11. An erasing unit 11c (= identification information erasing unit), an identification information acquisition unit 31a (= identification information acquisition unit) included in the control unit 31, an optical disc detection unit 31b (= optical disc detection unit), a memory 12, and an OSD processing unit 16, the video signal output unit 17, the monitor 18, and the optical disk drive 32.

  The identification information recording unit 11a records the identification information in the memory 12 when the identification information of the optical disc (such as the DVD medium 91 in FIG. 2) is given from the identification information acquisition unit 31a described later. The type of the identification information of the optical disc is not particularly limited as long as it is information that can uniquely identify the optical disc, but in this embodiment, a volume label included in the file system of the optical disc is used as the identification information. Therefore, the identification information recording unit 11 a records the volume label given from the identification information acquisition unit 31 a in the memory 12.

  When the identification information display unit 11 b receives an optical disc identification information display request by a user operation by the operation unit 22, the identification information display unit 11 b reads the volume label of the optical disk recorded in the memory 12 and uses the OSD processing unit 16 to display the monitor 18. indicate.

  The identification information erasure unit 11c erases the volume label of the optical disc recorded in the memory 12 when receiving a notification from the optical disc detection unit 31b, which will be described later, indicating that the optical disc has been removed from the optical disc drive 32.

  The identification information acquisition unit 31a reads the file system from the management information recording area of the optical disc when receiving a notification from the optical disc detection unit 31b, which will be described later, indicating that the optical disc is loaded in the optical disc drive 32. Then, the volume label included in the file system is acquired and given to the identification information recording unit 11a.

  The optical disc detection unit 31 b monitors the state of the optical disc drive 32. Then, when the mounting of the optical disk to the optical disk drive 32 is detected, a mounting detection notification is given to the identification information acquisition unit 31a. Further, when it is detected that the optical disk has been removed from the optical disk drive 32, the identification information erasure unit 11c is notified of the removal.

<3. About the identification information display screen>
Here, an example of an identification information display screen in the DVD player built-in television 100 according to an embodiment of the present invention will be described with reference to the screen diagram of FIG. Note that the identification information display screen shown below is displayed when, for example, disc information display is selected on the menu screen (= operation screen) displayed by the OSD processing unit 16 or when the identification information display button included in the operation unit 22 is pressed. It is displayed when it is done.

  As shown in FIG. 3, the identification information display screen 50 displayed on the DVD player built-in television 100 of the present invention is configured to include at least an identification information display area 51. Although not shown in FIG. 3, the OSD processing unit 16 may display text information for displaying the title, playback time, operation menu, and the like of the video being played.

  The identification information display area 51 is an area for displaying the volume label read from the memory 12 by the identification information display unit 11 b and can be displayed at an arbitrary position on the identification information display screen 50. In the example shown in FIG. 3, a character string “Disk070709” is displayed as a volume label. The display position and size of the identification information display area 51 may be changed by the user using the operation unit 22. The identification information predetermined area 51 is erased from the screen when a predetermined time has elapsed from the start of display or when a specific user operation is received.

<4. Identification information acquisition process>
Here, the optical disc identification information acquisition processing in the DVD player built-in television 100 according to an embodiment of the present invention will be described with reference to the block diagrams of FIGS. 1 and 2 and the flowchart of FIG.

  FIG. 4 is a flowchart showing an identification information acquisition process flow according to an embodiment of the present invention. This process is started when the optical disc detection unit 31b detects that the DVD medium 91 is loaded in the optical disc drive 32.

  The optical disc detection unit 31b that has detected the mounting of the DVD medium 91 gives a mounting detection notification to the identification information acquisition unit 31a and the pickup control unit 33. At the same time, in step S110, the optical disk drive 32 performs a chucking process for installing the DVD medium 91 on a driving member driven by a spindle motor.

  In step S120, a spin-up process for rotating the optical disk is started. When the spin-up process is started, the pickup control unit 33 performs a focus control, a tracking control, and the like of the optical pickup so that information can be read from the recording surface of the DVD medium 91 (= accessible state).

  After entering the accessible state, the identification information acquiring unit 31a reads the volume label from the area where the management information of the DVD medium 91 is recorded (= management information recording area) in step S130. In step S140, the read volume label is given to the identification information recording unit 11a.

  The identification information recording unit 11a given the volume label records the volume label in the memory 12 in step S150. Next, the control unit 31 determines whether or not a reproduction instruction for the DVD medium 91 is detected. The reproduction instruction is issued when a reproduction button included in the operation unit 22 is pressed by the user.

  When the reproduction instruction is detected, in step S170, reproduction processing of the DVD medium 91 is performed using the pickup control unit 33, the signal processing unit 34, the video signal output unit 17, the monitor 18, and the like. On the other hand, when the reproduction instruction is not detected even after the predetermined time has elapsed, the optical disc drive 32 stops the spin-up process in step S161. As a result, the accessible state is once released, and then this process is terminated.

<5. Identification information display processing>
Here, the identification information display processing of the optical disc in the TV 100 with a built-in DVD player according to one embodiment of the present invention is described using the block diagrams of FIGS. 1 and 2, the screen diagram of FIG. 3, and the flowchart of FIG. While explaining.

  FIG. 5 is a flowchart showing an identification information display processing flow according to an embodiment of the present invention. This process is started when the identification information display unit 11b detects an identification information display request of the DVD medium 91. The identification information display request is issued when, for example, an icon indicating execution of identification information display is selected on the menu screen displayed by the OSD processing unit 16 or when an identification information display button included in the operation unit 22 is pressed. Etc.

  Upon receiving the identification information display request, the identification information display unit 11b reads the volume label from the memory 12 in step S210. If no volume label is recorded in the memory 12, it is desirable to generate an error message or a character image indicating that the optical disk is not installed by the OSD processing unit 16 and display it on the monitor 18.

  Next, in step S220, the identification information display unit 11b generates a character image indicating the read volume label by the OSD processing unit 16 and displays it on the monitor 18. Thereby, for example, as shown in FIG. 3, an identification information display area 51 is displayed, and a character image showing a volume label is displayed therein.

  Next, in step S230, the identification information display unit 11b determines whether an instruction to delete the identification information display area 51 is detected. This deletion instruction is issued, for example, when the above-described identification information display button is pressed while the identification information display area 51 is displayed. Alternatively, the operation unit 22 may include an identification information erasure button for issuing an erasure instruction.

  If it is determined that the erasure instruction has been detected, the identification information display unit 11b stops the display process of the identification information display area 51 by the OSD processing unit 16 in step S250, and ends this process. If it is determined that the erasure instruction has not been detected, the identification information display unit 11b determines whether or not a predetermined time has elapsed since the OSD processing unit 16 started displaying the identification information display area 51 in step S240. Do.

  When it is determined that the predetermined time has not elapsed, the process proceeds to step S230 again. If it is determined that the predetermined time has elapsed, the process proceeds to step S250, and the display process of the identification information display area 51 by the OSD processing unit 16 is stopped, and then this process ends.

<6. About deletion processing of identification information>
Here, the optical disc identification information erasing process in the DVD player built-in television 100 according to an embodiment of the present invention will be described with reference to the block diagrams of FIGS. 1 and 2 and the flowchart of FIG.

  FIG. 6 is a flowchart showing an identification information erasing process flow according to an embodiment of the present invention. This process is started when the optical disc detection unit 31b detects an instruction to attach / detach the DVD medium 91 attached to the optical disc drive 32. The attachment / detachment instruction is issued, for example, when an optical disc eject button included in the operation unit 22 is pressed.

  In step S310, the optical disc detection unit 31b that has detected the instruction to detach / attach the DVD medium 91 gives a notification of detachment detection to the identification information erasing unit 11c. In step S320, the identification information erasing unit 11c that has received the desorption detection notification erases the identification information recorded in the memory 12, that is, the volume label.

  Next, in step S330, the optical disk drive 32 performs an optical disk removal process and ends this process. The optical disk removal process is the same as that of the prior art, and the description thereof is omitted here.

[Other embodiments]
The present invention has been described with reference to the preferred embodiments and examples. However, the present invention is not necessarily limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea. be able to.

Therefore, the present invention can also be applied to the following embodiments.
(A) In this embodiment, various functional units related to the identification information acquisition process, the identification information display process, and the identification information deletion process are realized by executing a program on an arithmetic processing unit such as a microprocessor. Various functional units may be realized by a plurality of circuits.

  (B) In this embodiment, the DVD player built-in television 100 is taken as an example of a playback multifunction peripheral, but the identification information display processing of the present invention is performed in other apparatuses as long as it is a multifunction peripheral equipped with an optical disk playback device. It is also possible to implement. For example, the present invention may be implemented in a television with a built-in BD player, a DVD / VCR / TV multifunction device, or the like.

  (C) In this embodiment, the volume label is used as the identification information for uniquely identifying the optical disc. However, other types of data may be used as the identification information. In addition, information other than the identification information, for example, a disc type, a recording data size, or a finalization date / time may be acquired as additional data, and may be added to the identification information and recorded and displayed. Thereby, the effect that it becomes easier for the user to identify the contents of the optical disc is obtained.

These are functional block diagrams showing the configuration of the functional units provided in the reproduction multifunction peripheral of the present invention. These are the block diagrams which show the internal structure of the reproduction | regeneration multifunction device of this invention. These are the screen figures which showed an example of the identification information display screen of this invention. These are the flowcharts which showed the identification information acquisition process of this invention. These are the flowcharts which showed the identification information display process of this invention. These are the flowcharts which showed the identification information deletion process of this invention.

Explanation of symbols

100 TV with built-in DVD player (playback multifunction device)
1 TV unit (display device)
11 Control section 11a Identification information recording section (identification information recording means)
11b Identification information display section (identification information display means)
11c Identification information erasure unit (identification information erasure means)
12 Memory (Recording part)
16 OSD processing unit (video signal superimposing unit)
18 Monitor (display unit)
22 Operation section 3 Optical disk device section (optical disk playback device)
31 Control Unit 31a Identification Information Acquisition Unit (Identification Information Acquisition Unit)
31b Optical disc detection unit (optical disc detection means)
32 Optical disk drive

Claims (4)

A display unit including a recording unit, a display unit, and a video signal superimposing unit that superimposes a video signal; and an optical disc reproducing device including an optical disc drive, wherein the display device and the optical disc apparatus are activated or not In a playback multifunction device that can be controlled
An optical disc detection unit for detecting whether an optical disc is attached to or detached from the optical disc drive, and identification information for identifying the optical disc from the management information recording area of the optical disc when the optical disc detection unit detects that the optical disc is installed. Identification information acquisition means for acquiring and giving to the display device,
The display device reads the identification information from the recording unit by receiving an identification information recording unit that records the identification information given from the identification information acquisition unit in a recording unit, and receives an instruction to display the identification information. An identification information display means for displaying a video signal including information on the display unit by superimposing the video signal on the video signal superimposing unit. 2. The display device includes an identification information erasing unit that erases the identification information recorded in the recording unit when the optical disk detection unit detects that an optical disk is attached or detached. Reproduction multifunction device described in 1. The reproduction multifunction device according to claim 1 or 2, wherein a volume label recorded in a management information recording area of an optical disc is used as the identification information. It has an operation part,
When the identification information display button included in the operation unit is pressed, and when the identification information is displayed on the operation screen displayed by the video signal superimposed by the video signal superimposing unit, the identification information is displayed. Information display instructions are issued,
The reproduction multifunction machine according to any one of claims 1 to 3, wherein